JP5806671B2 - Combined exhaust gas aftertreatment and air cleaner dust discharge device - Google Patents

Combined exhaust gas aftertreatment and air cleaner dust discharge device Download PDF

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JP5806671B2
JP5806671B2 JP2012530992A JP2012530992A JP5806671B2 JP 5806671 B2 JP5806671 B2 JP 5806671B2 JP 2012530992 A JP2012530992 A JP 2012530992A JP 2012530992 A JP2012530992 A JP 2012530992A JP 5806671 B2 JP5806671 B2 JP 5806671B2
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exhaust gas
outlet
discharge device
housing
section
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JP2013506077A (en
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クラインフェルト、クリス
ヘルナンデス、イシドロ
チェン、シ
ベネツィアーノ、リック
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Tenneco Automotive Operating Co Inc
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/08—Air cleaners with means for removing dust, particles or liquids from cleaners; with means for indicating clogging; with by-pass means; Regeneration of cleaners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/083—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using transversal baffles defining a tortuous path for the gases or successively throttling gas flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/085—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using a central core throttling gas passage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/05—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of air, e.g. by mixing exhaust with air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/02—Tubes being perforated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/22—Inlet and outlet tubes being positioned on the same side of the apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/30—Tubes with restrictions, i.e. venturi or the like, e.g. for sucking air or measuring mass flow
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Description

本発明は、燃焼過程で使われる排ガス後処理装置およびエアクリーナ装置に関し、特に、ディーゼルエンジンのような燃焼機関で使われる排ガス後処理装置およびエアクリーナ装置に関する。   The present invention relates to an exhaust gas aftertreatment device and an air cleaner device used in a combustion process, and more particularly to an exhaust gas aftertreatment device and an air cleaner device used in a combustion engine such as a diesel engine.

燃焼機関の入口エアクリーナと共にダスト排出装置を用いることは公知であり、ダスト排出装置を通って空気を引き入れるために、燃焼機関の排ガス装置を通る排ガス流を利用することは公知である。一例が、米国特許第４，１７８，７６０号にあり、これは、内燃機関の排ガス装置に連結された第１入口と、内燃機関の吸気フィルタに連結された第２入口を有するダスト排出装置を示している。   It is known to use a dust exhaust device in conjunction with a combustion engine inlet air cleaner, and it is known to utilize an exhaust gas flow through the combustion engine exhaust device to draw air through the dust exhaust device. One example is in U.S. Pat. No. 4,178,760, which includes a dust discharge device having a first inlet connected to an exhaust system of an internal combustion engine and a second inlet connected to an intake filter of the internal combustion engine. Show.

米国特許第４，１７８，７６０号U.S. Pat. No. 4,178,760

本発明の一形態によれば、複合型排ガス後処理およびダスト排出装置は、燃焼過程での使用のために設けられ、燃焼過程のエアクリーナを備えている。この装置は、排ガス後処理装置を含み、燃焼過程からの排ガス流を受容する排ガス入口と排ガス流をハウジングから放射状に向ける放射状排ガス出口とを有する細長いハウジングを有しており、この排ガス出口は、２つの対向する長辺と、この長辺を接続する２つの対向する短辺によって画定される断面を有しており、また、この装置は、排ガス出口に位置決めされる排出装置出口と、エアクリーナとの連結のためにハウジングの外部に排出装置出口から延びる排出装置導管とを含むダスト排出装置を有している。排出装置出口は、排ガス出口の２つの長辺から内方に間隔を空けた２つの対向する長辺と、排出装置出口の長辺を連結し排ガス出口の短辺から内方に間隔を空けた２つの対向する短辺とによって画定される断面を有している。   According to one aspect of the present invention, a combined exhaust gas aftertreatment and dust discharge device is provided for use in a combustion process and includes an air cleaner for the combustion process. The apparatus includes an exhaust gas aftertreatment device and has an elongated housing having an exhaust gas inlet for receiving an exhaust gas stream from a combustion process and a radial exhaust gas outlet for directing the exhaust gas stream radially from the housing, the exhaust gas outlet comprising: The apparatus has a cross section defined by two opposing long sides and two opposing short sides connecting the long sides, and the apparatus includes a discharge device outlet positioned at the exhaust gas outlet, an air cleaner, And a dust discharge device including a discharge device conduit extending from the discharge device outlet outside the housing. The exhaust device outlet is connected to the two opposing long sides spaced inward from the two long sides of the exhaust gas outlet and the long side of the exhaust device outlet, and spaced from the short side of the exhaust gas outlet inward. It has a cross section defined by two opposing short sides.

本発明の１つの態様によれば、後処理装置は、消音器である。   According to one aspect of the invention, the post-processing device is a silencer.

１つの態様では、出口断面の短辺は、曲線である。   In one aspect, the short side of the exit cross section is a curve.

１つの態様では、排ガス出口断面の長辺は、直線である。   In one aspect, the long side of the cross section of the exhaust gas outlet is a straight line.

１つの態様では、排出装置出口断面の長辺は、曲線である。   In one aspect, the long side of the discharge device outlet cross section is a curve.

１つの態様では、断面は、共通軸に集中している。   In one aspect, the cross section is concentrated on a common axis.

１つの態様では、排出装置出口は、出口断面の長辺に平行な方向に排出装置導管から外向きに張り出している。   In one aspect, the discharge device outlet projects outwardly from the discharge device conduit in a direction parallel to the long side of the outlet cross section.

１つの態様では、装置は、排ガス出口から軸方向に延びる排ガス出口導管を含んでいる。   In one aspect, the apparatus includes an exhaust gas outlet conduit extending axially from the exhaust gas outlet.

１つの態様では、ハウジングは、円筒ハウジングで、排出装置導管は、円筒導管である。   In one aspect, the housing is a cylindrical housing and the ejector conduit is a cylindrical conduit.

１つの態様では、ハウジングは、排ガス流を集めるために、後処理装置から下流の出口空間を含み、排ガス出口は、該空間の放射壁に配置されている。更なる態様では、排出装置導管は、該空間を貫通している。   In one aspect, the housing includes an outlet space downstream from the aftertreatment device to collect the exhaust gas stream, and the exhaust gas outlet is disposed on a radiant wall of the space. In a further aspect, the ejector conduit passes through the space.

本発明の１つの態様では、複合型排ガス後処理およびダスト排出装置は、燃焼過程での使用のために設けられ、燃焼過程のエアクリーナを備えている。この装置は、排ガス後処理装置を含み、燃焼過程からの排ガス流を受容する排ガス入口と排ガス流をハウジングから放射状に向ける放射状排ガス出口とを有する細長いハウジングを有しており、また、この装置は、排ガス出口に位置決めされる排出装置出口と、エアクリーナとの連結のためにハウジングの外部に排出装置出口から延びる排出装置導管とを含むダスト排出装置を有している。排ガス出口と排出装置出口とは、排出装置出口を通過する排ガス流を加速するために、排ガス流の流路面積を減じる、排ガス出口から内方に間隔を空けた排出装置出口の断面を有する楕円形断面を有している。   In one aspect of the present invention, a combined exhaust gas aftertreatment and dust discharge device is provided for use in a combustion process and includes a combustion process air cleaner. The apparatus includes an exhaust gas aftertreatment device, and has an elongated housing having an exhaust gas inlet for receiving an exhaust gas stream from a combustion process and a radial exhaust gas outlet for directing the exhaust gas stream radially from the housing, the apparatus comprising: And a dust discharge device including a discharge device outlet positioned at the exhaust gas outlet and a discharge device conduit extending from the discharge device outlet to the outside of the housing for connection with the air cleaner. The exhaust gas outlet and the exhaust device outlet are oval having a cross section of the exhaust device outlet spaced inward from the exhaust gas outlet, reducing the flow area of the exhaust gas flow to accelerate the exhaust gas flow passing through the exhaust device outlet It has a cross section.

本発明の１つの態様によれば、後処理装置は、消音器である。   According to one aspect of the invention, the post-processing device is a silencer.

１つの態様では、ハウジングは、円筒ハウジングである。   In one aspect, the housing is a cylindrical housing.

１つの態様では、排出装置導管は、円筒導管である。   In one aspect, the ejector conduit is a cylindrical conduit.

１つの態様では、排出装置出口は、排出装置出口の楕円形断面によって画定される主軸に沿って排出装置導管から外向きに張り出している。   In one aspect, the discharge device outlet projects outwardly from the discharge device conduit along a major axis defined by the elliptical cross section of the discharge device outlet.

１つの態様では、断面は、共通軸に集中している。   In one aspect, the cross section is concentrated on a common axis.

１つの態様では、装置は、排ガス出口から軸方向に延びる排ガス出口導管を含んでいる。   In one aspect, the apparatus includes an exhaust gas outlet conduit extending axially from the exhaust gas outlet.

１つの態様では、ハウジングは、排ガス流を集めるために、後処理装置から下流の出口空間を含み、排ガス出口は、該空間の放射壁に配置されている。更なる態様では、排出装置導管は、該空間を貫通している。   In one aspect, the housing includes an outlet space downstream from the aftertreatment device to collect the exhaust gas stream, and the exhaust gas outlet is disposed on a radiant wall of the space. In a further aspect, the ejector conduit passes through the space.

本発明のその他の目的、特徴および利点は、添付の特許請求の範囲と図面を含む明細書により明確になるものである。   Other objects, features and advantages of the present invention will become apparent from the appended claims and the specification, including the drawings.

本発明を実施する複合型排ガス後処理およびダスト排出装置を組み込む燃焼過程を示す概略図である。It is the schematic which shows the combustion process incorporating the composite type | mold exhaust gas aftertreatment and dust discharge device which implements this invention. 図１の複合型排ガス後処理およびダスト排出装置の正面図である。FIG. 2 is a front view of the combined exhaust gas aftertreatment and dust discharge device of FIG. 1. 図２の線３−３に沿った断面図である。FIG. 3 is a cross-sectional view taken along line 3-3 in FIG. 2. 図２の線４−４に沿った左側面図である。FIG. 4 is a left side view taken along line 4-4 of FIG. 図３の線５−５から見た複合型排ガス後処理およびダスト排出装置の選択された要素の下から見た拡大斜視図である。FIG. 5 is an enlarged perspective view from below of selected elements of the combined exhaust gas aftertreatment and dust discharge device seen from line 5-5 in FIG. 3; 図５の線６−６から見た複合型排ガス後処理およびダスト排出装置の選択された要素の拡大図である。FIG. 6 is an enlarged view of selected elements of the combined exhaust gas aftertreatment and dust discharge device seen from line 6-6 of FIG. 図５の選択された要素の拡大図である。FIG. 6 is an enlarged view of selected elements of FIG. 図２〜７の排出装置要素の上から見た斜視図である。FIG. 8 is a top perspective view of the ejector element of FIGS.

複合型の排ガス後処理およびダスト排出装置１０は、燃焼過程１４の排ガス流１２と、燃焼過程のエアクリーナ１６と共に使われるように設けられる。図示の実施例では、燃焼過程１４は、ディーゼルエンジン１８と、エンジン１８からの排ガス流１２を処理する後処理装置２０と、入口空気流２４をエンジン１８に処理する入口空気装置２２とを有している。   A combined exhaust gas aftertreatment and dust discharge device 10 is provided for use with the exhaust gas stream 12 of the combustion process 14 and the air cleaner 16 of the combustion process. In the illustrated embodiment, the combustion process 14 includes a diesel engine 18, a post-treatment device 20 that processes the exhaust gas stream 12 from the engine 18, and an inlet air device 22 that processes the inlet air stream 24 to the engine 18. ing.

排ガス後処理装置２０は、多くの後処理要素を含んでおり、これは、消音器と、ディーゼル粒子フィルタ（ＤＰＦ）および・または選択的接触還元触媒（ＳＣＲ）や希薄窒素酸化物トラップのような窒素酸化物還元装置と、排気を高温で装置２０の残りの部分に選択的に供給するバーナとを含んでいる。同様に、入口空気装置２２は、例えば、空気フィルタや、予熱器や、過給機や、ターボ過給機のような多くの入口空気処理要素を含むことができる。   The exhaust gas aftertreatment device 20 includes a number of aftertreatment elements, such as a silencer, a diesel particulate filter (DPF) and / or a selective catalytic reduction catalyst (SCR) or a lean nitrogen oxide trap. A nitrogen oxide reduction device and a burner that selectively supplies exhaust gas to the rest of the device 20 at high temperatures. Similarly, the inlet air device 22 can include a number of inlet air treatment elements such as, for example, air filters, preheaters, superchargers, and turbochargers.

図２を参照すると、複合的な排ガス後処理およびダスト排出装置１０は、長手軸３１に沿って延び、燃焼機関１８からの排ガス流１２を放射状に装置３０に向ける放射状排ガス入口３２と、排ガス流１２を放射状にハウジング３０から向ける放射状排ガス出口３４とを有する細長いハウジング３０を有している。図示された好ましい形態では、ハウジング３０は、円筒形であり、入口３２から軸方向に延びる円筒形入口導管３６と、出口３４から軸方向に延びる円筒形出口導管３８とを備えている。   Referring to FIG. 2, the combined exhaust gas aftertreatment and dust exhaust device 10 extends along a longitudinal axis 31 and has a radial exhaust gas inlet 32 that directs the exhaust gas stream 12 from the combustion engine 18 radially toward the device 30, and an exhaust gas stream. It has an elongated housing 30 with a radial exhaust outlet 34 that directs 12 radially from the housing 30. In the preferred form shown, the housing 30 is cylindrical and includes a cylindrical inlet conduit 36 extending axially from the inlet 32 and a cylindrical outlet conduit 38 extending axially from the outlet 34.

図３に最もよく示されるように、ハウジング３０は、円筒状の穴あきバッフルチューブ４６で隔置された１対の円盤状バッフルプレート４２と４４を含む消音器４０の形態の排ガス後処理装置を含んでいる。図４に最もよく示されるように、バッフルプレート４２は、排ガス流１２の一部がバッフルチューブ４６を取り囲むことができるように、一連の円周上隔置された円形開口４８を含んでいる。図３に最もよく示されるように、入口空間５０は、バッフルプレート４２とハウジング３０の円盤状エンドキャップ５２の間に画定されており、出口空間５４は、バッフルプレート４４とハウジング３０の円盤状エンドキャップ５６の間に画定されている。入口空間５０は、排ガス流１２を消音器４０に分配するようになっており、出口空間５０は、排ガス流１２を消音器４０に集めるようになっている。   As best shown in FIG. 3, the housing 30 includes an exhaust gas aftertreatment device in the form of a silencer 40 that includes a pair of disk-like baffle plates 42 and 44 separated by a cylindrical perforated baffle tube 46. Contains. As best shown in FIG. 4, the baffle plate 42 includes a series of circumferentially spaced circular openings 48 so that a portion of the exhaust gas stream 12 can surround the baffle tube 46. As best shown in FIG. 3, the inlet space 50 is defined between the baffle plate 42 and the disk-shaped end cap 52 of the housing 30, and the outlet space 54 is formed of the baffle plate 44 and the disk-shaped end of the housing 30. Defined between caps 56. The inlet space 50 distributes the exhaust gas stream 12 to the silencer 40, and the outlet space 50 collects the exhaust gas stream 12 in the silencer 40.

図３および５に最もよく示されるように、装置１０は、更に、排ガス出口３４に位置決めされた排出装置出口６２と、エアクリーナ１６（図２に最もよく示される）との接続のために、排出装置出口６２からハウジング３０の外部へと空間５４を貫通する排出装置導管６４とを有しているダスト排出装置６０を含む。図６に最もよく示されるように、排ガス出口３４と排出装置出口６２は、楕円形の断面６８と７０を有しており、排出装置出口断面７０は、排出装置出口６２を通過した排ガス流１２を加速するために断面６８と７０の間に減じられた流路面積７２を画定するように、排ガス出口断面６８から内方に隔置されている。排ガス出口３４の断面６８は、２つの対向する長辺７４と、長辺７４を連結する２つの対向する短辺７６によって画定されている。同様に、図６から８に最もよく示されるように、排出装置出口断面７０は、排ガス出口３４の２つの長辺７４から内方に隔置される２つの対向する長辺７８と、長辺７８を連結し排ガス出口３４の短辺７６から内方に隔置される２つの対向する短辺８０によって画定される。図示される好ましい実施例では、短辺７４と７６は曲線であり、長辺７４は直線であり、長辺７８は曲線である。好ましくは、断面は、共通軸８２上に集中され、軸８２を横断し軸８２を通過する長軸８４と短軸８６を画定する。   As best shown in FIGS. 3 and 5, the apparatus 10 further discharges due to the connection between the exhaust outlet 62 positioned at the exhaust outlet 34 and the air cleaner 16 (best shown in FIG. 2). A dust discharge device 60 having a discharge device conduit 64 extending through the space 54 from the device outlet 62 to the exterior of the housing 30 is included. As best shown in FIG. 6, the exhaust gas outlet 34 and the exhaust device outlet 62 have elliptical cross sections 68 and 70, and the exhaust device exit cross section 70 passes through the exhaust device outlet 62. Is spaced inwardly from the exhaust gas outlet cross section 68 so as to define a reduced flow area 72 between the cross sections 68 and 70 to accelerate the flow. The cross section 68 of the exhaust gas outlet 34 is defined by two opposing long sides 74 and two opposing short sides 76 connecting the long sides 74. Similarly, as best shown in FIGS. 6-8, the exhaust outlet cross section 70 has two opposing long sides 78 spaced inwardly from the two long sides 74 of the exhaust gas outlet 34, and a long side. 78 and is defined by two opposing short sides 80 that are spaced inwardly from the short side 76 of the exhaust gas outlet 34. In the preferred embodiment shown, short sides 74 and 76 are curves, long sides 74 are straight lines, and long sides 78 are curves. Preferably, the cross section is concentrated on a common axis 82 and defines a major axis 84 and a minor axis 86 that traverse the axis 82 and pass through the axis 82.

好ましくは、図４から８に最もよく示されるように、排出装置出口６２は、長軸８４に沿って排出装置導管６４から外向きに張り出している。この張り出しによって、ダスト排出装置出口６２を横断する圧力降下を減じることができるのである。   Preferably, as best shown in FIGS. 4 to 8, the discharge device outlet 62 projects outwardly from the discharge device conduit 64 along the long axis 84. This overhang can reduce the pressure drop across the dust evacuator outlet 62.

作動においては、排ガス流１２は、出口３４と６２の楕円形断面６８と７０の間の減じられた流路面積７２を通って加速しつつ、空間５４に集められ出口３４へと向けられるように消音器４０を通過し、これにより、空気とダストをエアクリーナ１６から導管６４を介して引く排出装置出口６２の周囲にベンチュリ効果を作り出すのである。排出される空気とダストは、後処理装置２０の残りの部分を通って排ガス流と共に進行する。   In operation, the exhaust gas stream 12 is collected in the space 54 and directed to the outlet 34 while accelerating through the reduced flow area 72 between the elliptical sections 68 and 70 of the outlets 34 and 62. It passes through the silencer 40, thereby creating a venturi effect around the discharge outlet 62 that draws air and dust from the air cleaner 16 through the conduit 64. The exhausted air and dust travel with the exhaust gas stream through the rest of the aftertreatment device 20.

ここで図示した好ましい実施例は、消音器４０と関連して示したが、複合型の装置１０は、既に述べた例のいずれかを含むような他の後処理装置を用いてもよい。ハウジング３０は、円筒形として示したが、他の構成として、その他の形状もハウジングに利用可能である。消音器４０は、１つの構成が示されたが、各適用の特定の要求に応じて、その他のものが利用可能である。   Although the preferred embodiment shown here has been shown in connection with the silencer 40, the combined device 10 may use other post-processing devices, including any of the examples already described. Although the housing 30 is shown as being cylindrical, other shapes can be used for the housing as other configurations. The silencer 40 is shown in one configuration, but others can be used depending on the specific requirements of each application.

Claims (20)

燃焼過程の排ガス流と、燃焼過程のエアクリーナを備えて使用される複合型排ガス後処理およびダスト排出装置であって、
該装置は、排ガス後処理装置を含み、燃焼過程からの排ガス流を受容する排ガス入口と排ガス流をハウジングから放射状に向ける放射状排ガス出口とを有する細長いハウジングであって、この排ガス出口は、２つの対向する長辺と、この長辺を接続する２つの対向する短辺によって画定される断面を有している、細長いハウジングと、
排ガス出口に位置決めされる排出装置出口と、エアクリーナとの連結のためにハウジングの外部に排出装置出口から延びる排出装置導管とを含むダスト排出装置であって、排出装置出口は、排ガス出口の２つの長辺から内方に間隔を空けた２つの対向する長辺と、排出装置出口の長辺を連結し排ガス出口の短辺から内方に間隔を空けた２つの対向する短辺とによって画定される断面を有している、ダスト排出装置とからなる、複合型排ガス後処理およびダスト排出装置。 A combined exhaust gas aftertreatment and dust discharge device used with an exhaust gas flow in the combustion process and an air cleaner in the combustion process,
The apparatus includes an exhaust gas aftertreatment device, an elongated housing having an exhaust gas inlet for receiving an exhaust gas stream from a combustion process and a radial exhaust gas outlet for directing the exhaust gas stream radially from the housing, the exhaust gas outlet comprising two An elongated housing having a cross section defined by opposing long sides and two opposing short sides connecting the long sides;
A dust discharge device comprising a discharge device outlet positioned at the exhaust gas outlet and a discharge device conduit extending from the discharge device outlet outside the housing for connection to an air cleaner, the discharge device outlet being two exhaust gas outlets Defined by two opposing long sides spaced inward from the long side and two opposing short sides connecting the long side of the exhaust outlet and spaced inward from the short side of the exhaust gas outlet A combined exhaust gas post-treatment and dust discharge device comprising a dust discharge device having a cross section. 後処理装置は、消音器である、請求項１に記載の装置。   The apparatus of claim 1, wherein the post-processing device is a silencer. 出口断面の短辺は、曲線である、請求項１に記載の装置。   The apparatus of claim 1, wherein the short side of the exit cross section is a curve. 排ガス出口断面の長辺は、直線である、請求項１に記載の装置。   The apparatus according to claim 1, wherein a long side of the cross section of the exhaust gas outlet is a straight line. 排出装置出口断面の長辺は、曲線である、請求項１に記載の装置。   The apparatus according to claim 1, wherein a long side of the discharge device outlet cross section is a curve. 断面は、共通軸に集中している、請求項１に記載の装置。   The apparatus of claim 1, wherein the cross section is concentrated on a common axis. 排出装置出口は、出口断面の長辺に平行な方向に排出装置導管から外向きに張り出している、請求項１に記載の装置。   The apparatus of claim 1, wherein the discharge device outlet projects outwardly from the discharge device conduit in a direction parallel to the long side of the outlet cross section. 排ガス出口から軸方向に延びる排ガス出口導管を更に含む、請求項１に記載の装置。   The apparatus of claim 1, further comprising an exhaust gas outlet conduit extending axially from the exhaust gas outlet. ハウジングは、円筒ハウジングで、排出装置導管は、円筒導管である、請求項１に記載の装置。   The apparatus of claim 1, wherein the housing is a cylindrical housing and the discharge device conduit is a cylindrical conduit. ハウジングは、排ガス流を集めるために、後処理装置から下流の出口空間を含み、排ガス出口は、該空間の放射壁に配置されている、請求項１に記載の装置。   The apparatus of claim 1, wherein the housing includes an outlet space downstream from the aftertreatment device to collect the exhaust gas stream, the exhaust gas outlet being disposed on a radiant wall of the space. 排出装置導管は、該空間を貫通している、請求項１０に記載の装置。   The apparatus of claim 10, wherein an ejector conduit extends through the space. 燃焼過程の排ガス流と、燃焼過程のエアクリーナを備えて使用される複合型排ガス後処理およびダスト排出装置であって、
該装置は、排ガス後処理装置を含み、燃焼過程からの排ガス流を受容する排ガス入口と排ガス流をハウジングから放射状に向ける放射状排ガス出口とを有する細長いハウジングと、
排ガス出口に位置決めされる排出装置出口と、エアクリーナとの連結のためにハウジングの外部に排出装置出口から延びる排出装置導管とを含むダスト排出装置であって、排ガス出口と排出装置出口とは、排出装置出口を通過する排ガス流を加速するために、排ガス流の流路面積を減じる、排ガス出口から内方に間隔を空けた排出装置出口の断面を有する楕円形断面を有している、ダスト排出装置とからなる、複合型排ガス後処理およびダスト排出装置。 A combined exhaust gas aftertreatment and dust discharge device used with an exhaust gas flow in the combustion process and an air cleaner in the combustion process,
The apparatus includes an exhaust gas aftertreatment device, an elongated housing having an exhaust gas inlet for receiving an exhaust gas stream from a combustion process and a radial exhaust gas outlet for directing the exhaust gas stream radially from the housing;
A dust discharge device including a discharge device outlet positioned at the exhaust gas outlet and a discharge device conduit extending from the discharge device outlet to the outside of the housing for connection with an air cleaner, wherein the exhaust gas outlet and the discharge device outlet are discharged Dust discharge having an elliptical cross section with a cross section of the discharge device outlet spaced inward from the exhaust gas outlet, reducing the flow area of the exhaust gas flow to accelerate the exhaust gas flow passing through the device outlet A combined exhaust gas post-treatment and dust discharge device. 後処理装置は、消音器である、請求項１２に記載の装置。   The apparatus according to claim 12, wherein the post-processing device is a silencer. ハウジングは、円筒ハウジングである、請求項１２に記載の装置。   The apparatus of claim 12, wherein the housing is a cylindrical housing. 排出装置導管は、円筒導管である、請求項１２に記載の装置。   The apparatus of claim 12, wherein the discharge device conduit is a cylindrical conduit. 排出装置出口は、排出装置出口の楕円形断面によって画定される主軸に沿って排出装置導管から外向きに張り出している、請求項１２に記載の装置。   13. The device of claim 12, wherein the discharge device outlet projects outward from the discharge device conduit along a major axis defined by the elliptical cross section of the discharge device outlet. 断面は、共通軸に集中している、請求項１２に記載の装置。   The apparatus of claim 12, wherein the cross section is concentrated on a common axis. 排ガス出口から軸方向に延びる排ガス出口導管を更に含んでいる、請求項１２に記載の装置。   The apparatus of claim 12 further comprising an exhaust gas outlet conduit extending axially from the exhaust gas outlet. ハウジングは、排ガス流を集めるために、後処理装置から下流の出口空間を含み、排ガス出口は、該空間の放射壁に配置されている、請求項１２に記載の装置。   13. The apparatus of claim 12, wherein the housing includes an outlet space downstream from the aftertreatment device to collect the exhaust gas stream, the exhaust gas outlet being disposed on a radiant wall of the space. 排出装置導管は、該空間を貫通している、請求項２０に記載の装置。   21. The device of claim 20, wherein a drain device conduit passes through the space.
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